Machine for finishing leatheb



i UNITED sTATEs PATENT oEEroE.

WILLIAM ELLARD, OF VOBURN, MASSACHUSETTS.

MACHINE FOR FINISHING- LEATHER.

Specification of Letters Patent No. 31,879, dated April 2, 1861.

To all' whom 'it may concern.'

Be it known that I, VILLIAM ELLARD, of Woburn, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Machinery for Glossing or Finishing Leather, and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l, is a front view; Fig. 2, a side elevation, and FigB, a transverse section of a machine containing my invention.

The nature of the said, invention consists in a new combination and arrangement of devices for effecting the proper reciprocating movements of the glossing or finishing tool relatively to a straight bed for supporting the leather.

In the drawings, A denotes the table or frame of the machinewhile B is the bed on which the leather to be glossed is to be laid. This bed has a straight or nearly straight upper surface and is supported by means of rods, a a, resting on springs, b, 5. Over this bed is the glossing, dicing or finishing tool C, whose carrier or holder D, is hinged or jointed to the lower extremity of the cross bar e, of a T lever, E, which is composed of two bars (l, e, fastened together and arranged with respect to one another as shown. in the drawings. An abutment or stop plate f, is fixed to the lower, lpart of the bar e and serves to support the tool holder while the tool is being drawn over the bed. The rear end of the bar d is connected to a cranked wheel Gr by a pin or stud g, the Said cranked wheel being fixed on a driving shaft I-I.

The upper part of the bar e, is slotted or forked to receive a friction roller, I, which not only runs on a pin 71 passed through the said bar e, but rests on a bent rail K, and bears against a cam L, which is affixed to the lower side of an arm M, )rojecting from the frame A, and over the bed B, as shown in the drawings. The bar or rail K, is

formed and extended from the arm M, as shown in the drawings. Its object is to prevent the glossin tool from dropping into Led (or any piece of leather Contact with the that may be thereon) while the T lever may be in the act of being forced backward. During each entire revolution of the driving shaft in the direction exhibited by the arrow s, the T lever will not only be driven forward but be forced backward over the bed. lVhile the T bar is being driven forward, the crank pin g, should be running through the upper half circle of its revolution, in which case the glossing tool, in consequence of Athe peculiar cooperation and action of the T lever, its crank and the cam L, will be moved along in contact; with the bed or the leather when on the latter. But

while the crank pin may be going through its lower semi-circle of revolution, the glossing tool will not only be forced backward, but be lifted and maintained oif the bed (or its leather) and so as to enable the leather to be moved on the bed in order that the tool during its next forward movement may be caused to work on a fresh portion of the surface 0f the leather and either polish, grain or dice it as circumstances: may reqnire.

Although the mechanism above described for operating the glossing tool, resembles in some respects, others in use for a like purpose, yet it differs materially therefrom and for simplicity of construction and operation presents comparatively speaking important advantages. Y

I lay no claim to the combination of `a vibratory slicker bar, a plane surface bed and machinery for rotating the bar and elevating the slicker or polisher off the leather or its bed during every retrograde movement of the slicker.

What I claim as my invention or improvement is- The above specified arrangement and application of the bars, cl, e, (or the T lever E,) the cam L, the roller I and the retainer or rail K, with respect to each other and the glossing tool carrier D, thevbed B, and the crank wheel G, the whole being to operate substantially as specified.

WILLIAM ELLARD.

Witnesses:

W. Gr. WHEELOCK, CHAS. BoYoE. 

